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Power Door Lock/Unlock Relay

  1. Remove and disconnect power door lock/unlock relay located behind passenger kick panel. Measure resistance between power door lock/unlock relay terminal No. 5 and terminals No. 2, 4, 7 and 9. See Fig 1 . All resistances should be 150-185 ohms. If resistances are not as specified, replace power door lock/unlock relay.
  2. Measure resistance between power door lock/unlock relay terminal No. 6 and terminals No. 3, 8 and 12. See Fig 1 . All resistances should be less than 5 ohms. If all resistances are as specified, go to next step. If resistances are not as specified, replace power door lock/unlock relay.
  3. Apply battery voltage to relay terminal No. 5 and ground to relay terminal No. 1. Measure voltage between ground and relay terminal No. 7. See Fig 1 . Apply battery voltage to relay terminal No. 5 and ground to relay terminal No. 2. Measure voltage between ground and relay terminal No. 6.
  4. Apply battery voltage to relay terminal No. 5 and ground to relay terminal No. 3. Measure voltage between ground and relay terminal No. 4. See Fig 1 . Apply battery voltage to relay terminal No. 5 and ground to relay terminal No. 8. Measure voltage between ground and relay terminal No. 9.
  5. Voltage in all tests should be more than 10 volts. If voltage is not as specified, replace power door lock/unlock relay. If all voltages are as specified, relay is functioning properly.
Fig 1: Identifying Door Lock/Unlock Relay Terminals
G97H28065Courtesy of FORD MOTOR CO.